Synonyms and other taxonomic changes
5 spp. n. of Mex. (Hoelmer & Pickett 2003)
Two species, D. dejavu Gordon and D. sonoricus Casey, previously considered conspecific with D. pusillus, have western U.S. distributions.
As a result, the distribution of D. pusillus is now restricted to the eastern half of the U.S., and that of D. catalinae is recorded as extending from Colombia north through Mexico into coastal southern California, and to the east to the island of Trinidad in the West Indies. (Hoelmer & Pickett 2003)
Hoelmer, K.A. & C.H. Pickett. 2003. Geographic origin and taxonomic history of Delphastus
spp. (Coleoptera: Coccinellidae) in commercial culture. Biocontrol Science and Technology, 13(5): 529–535. (Full PDF